1994 SS stock EJ22T.

 

don't notice it if RPMs are up... but just off idle whether stopped or moving, the noise frequency increases with RPMs, but is not a consistent noise. seems to waver...

 

170k on stock engine and turbo (assuming it's original)

clutch has been starting to slip occasionally.

 

I'm hoping it's the turbo or the clutch, because both are going to be replaced shortly... TD04 (75k) sitting on the shelf waiting...

 

 

any thoughts...

could be front pulley separating. My 94 wagon has that going on now too, fairly typical after being that old.

Not a subaru, but my van was doing the same thing. When i replaced the pully and the tensioner the noise went away. I replaced the belt at the same time as well.

or check AC compressor for vibration, the bearings in them go about this miles too....if so, cut the belt off.

 

hope it is something easy.

tap, screech, knock, squeal? if you're saying "bad" it doesn't sound good, boo!?

 

sounds like you're not leaning towards these but accessory belts/pulleys? removing both belts and cranking the motor rules out belts, pulleys, alt, p/s, a/c bearings.

when I first heard it, it reminded me of a fan motor going bad. labored. kind of a lower pitched, sputtery growl....

 

if that makes sense....

 

bad enough that I didn't feel like driving it for my work commute...

My folks have the big parts delivery and theres 2 hoses coming priority mail. Hope its the turbocharger or a timing belt idler which would be my two guesses.

Timing belt slapping the cover. Sounds kinda like this?

No. Doesn't soind like that. It is accompanied by a vibration too that a can vaguely feel thru the shifter.

Driveshaft u joint or carrier bearing possibly.

alternator bearing?

Driveshaft u joint or carrier bearing possibly.

 

nope. does it while parked... but I'll verify...

 

I got all my parts today for the clutch and axle swap... still need to get the items needed for the turbo swap though...

Could be the release bearing rattling around.

it's definitely in the front of the engine... haven't had a chance to see what exactly it is though...

waterpump maybe if not the alternator.

AC Belt tensioner....

 

it was so toasty, you could hold it by the pulley with the bracket hanging down, and turn it, and the bracket would move with it, and hold at a 90 degree angle without any rotation!